JP2544409Y2 - Suction and exhaust system in threshing machine - Google Patents

Description

[Detailed description of the invention]

[0001]

In the present invention, a wind separator is provided below the handling room to sort threshing material from the handling room, and a dust chamber is integrally formed behind the handling room and the wind sorting unit. The present invention relates to a suction and exhaust device in a threshing machine comprising:

[0002]

2. Description of the Related Art In such a threshing machine, fluctuations in increase and decrease of threshing material from a handling room affect not only a sorting wind in a wind sorting unit but also a suction wind of a suction / discharge fan on a dust extraction chamber side, resulting in poor sorting. Or a part of the grain is sucked from the dust chamber by the suction / dust fan and scattered outside the machine, resulting in a so-called third loss. For this reason, the above-mentioned sorting failure or 3
In order to prevent a loss, the number of rotations of the fan is changed, or the size of the suction wind is adjusted by adjusting the size of the intake port of the fan, but sufficient results have been obtained. There is no present.

[0003]

Therefore, in view of the present situation as described in the preceding section, the present invention stabilizes the threshing without affecting the suction wind of the suction and exhaust fan even if the amount of threshing varies. The purpose of the present invention is to prevent the third loss caused by the outside dust scattering from the suction and exhaust fan while avoiding the sorting failure in the wind selection unit, and to provide a means for preventing the third loss with a simple structure that does not require rotational power. It will not be provided by the thing.

[0004]

SUMMARY OF THE INVENTION The present invention sorts threshing material from a handling room below a handling room in order to provide a suction and dust-exhaust device provided with a prevention means as described in the preceding paragraph. In a threshing machine that has a wind-selection unit and a dust-removal chamber that is integrated with the handling room and the rear of the wind-selection unit, one side discharges dust.
Dust at the dust outlet opening toward the chamber and the outer wall of the dust chamber
A suction dust exhaust fan is mounted on the opposite side of the mouth , and the suction dust exhaust fan opens a drop port at the bottom in the upper part of the dust chamber and opens a suction port on the side wall of the grain. The suction chamber and the suction / discharge fan are connected from the suction port via the suction chamber and the fan suction port, so that when the threshing machine is operated, the handling cylinder and the suction drum are sucked. The dust exhaust fan rotates in a predetermined direction, and in the wind selection section, the sorting wind blows toward the dust chamber, and the sorting wind enters the stagnation chamber from the dust chamber through the suction port, and is sucked through the fan suction port. The air is exhausted from the exhaust fan to the outside of the machine. Then, the wind entering the stagnation chamber from the dust chamber increases the wind speed at the suction port and enters the stagnation chamber, and since the stagnation chamber is formed in a wide space, the wind entering the stagnation chamber rapidly reduces the wind speed. The reduced wind speed increases the wind speed again from the fan suction port and discharges the air from the suction / dust exhaust fan to the outside of the device. Therefore, the threshing material falling by receiving the threshing action by the handling cylinder in the handling room is sorted out by the sorting wind in the wind selection section, the first thing is taken out outside the machine while being assembled, and the second thing is taken out of the handling room or the wind selection section. Part of the grains are returned to the section and reprocessed, and some of the grains enter the stagnation chamber through the suction port together with the dust, where the grains heavier than the dust separate from the dust, stagnate and descend, and are collected. Only the air is sucked from the fan suction port together with the wind, and is discharged to the outside of the machine by the suction / dust exhaust fan.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a threshing machine equipped with a suction and dust discharge device according to the present invention will be described with reference to the embodiment drawings. (1): A handling cylinder (10) rotating in the direction (A) is mounted on a storage shaft. The handling room (11) is a processing room arranged side by side on the rear side of the handling room (1), and has a processing drum (12) that rotates in the (b) direction, and the handling room (1) and the processing room (11). ) Is connected to the other side by the dust outlet (13) on the other side, that is, on the culm side, and around the lower side of each chamber (1) (11) is constituted by receiving nets (14) (15).

[0006] A wind selection unit (2) is provided below the handling room (1).
The dust chamber (3) is integrally formed on the rear side of the handling chamber (1) and the wind selection part (2), and the other side of the dust chamber (3) is sucked into the outside wall. A dust exhaust fan (5) is mounted, and the processing chamber (11) is located in the upper part of the dust exhaust chamber ( 3), and one side of the exhaust chamber is cut off by removing the receiving net (15). A wide exhaust port (4) is opened in the upper part of the dust chamber (3).

[0007] A pressure air fan (16) is provided in the front side of the wind selection section (2) to form a selection air path (17) through which the selection wind flows toward the dust chamber (3). A first gutter (18) is provided horizontally at the bottom thereof, and swings in the direction in which the sorting wind blows between the receiving net (14) and the sorting wind path (17) to mainly handle the handling room (18). A rocking sorter (19) that rocks and sorts upon receiving threshing material falling from 1) is mounted over the entire width, and the rocking sorter (19) is a transfer plate (20).
And a perforated plate (21).

[0008] (22) is to divide the leaked material from the receiving net (15) constituting the lower side of the processing chamber (11) into two parts, and the lower part of the handling chamber (1) and the dust chamber (3). ) Is a guide plate for dropping on the alligator, the lower end of which is a flexible plate such as a rubber plate (23), which is a return plate that swings integrally with the swing sorting body (19). 24) is a spoke body in which a long rod and a short rod are alternately arranged in parallel. The spoke body is located below the exhaust port (4) of the processing chamber (11) and has a shaft (26). It is configured to vibrate up and down as a fulcrum, and (27) is a second gutter installed laterally at the bottom of the dust chamber (3). That is, it is in communication with the grain culm supply side.

Next, (a) shows the suction / dust exhaust fan (5).
This is a stagnation chamber provided in the upper part of the dust chamber (3), which has a funnel shape at the bottom, opens a long drop port (6) in the width direction, and extends the front wall (29) upward. The upper edge thereof indicates the receiving net (15) of the processing chamber (11). The rear edge is joined to the rear wall (30) of the dust chamber (3) and the suction dust fan ( 5) Place the side wall of the dust in the dust chamber (3)
The other side is also used as a side wall (31), and the exhaust port (4) is formed in a wide space by being surrounded by a side wall (7) that opens an intake port (8). The chamber (a) communicates with the suction port (8), and the stagnation chamber (a) and the suction / dust fan (5) are connected to the other side wall (31) of the dust chamber (3). The stagnation chamber (a) is adjacent to the suction / dust fan (5) so as to communicate with 9). A handling cylinder / processing cylinder cover (32) covering the upper side of the handling chamber (1) and the processing chamber (11) is openable and closable about a rear fulcrum (33). Room (a)
And the dust chamber (3) covers one side.

Reference numeral (34) denotes a flow plate which is inclined from the front side wall (29) forming the stagnation chamber (a) to below the receiving net (15) of the processing chamber (11). Mouth (8)
A partition wall extending forward from the front edge of the side wall (7), the upper edge of which is formed in an arc shape, the edge of the receiving net (15) is fixed, and the front edge is drained. It is adhered to a guide plate (36) for guiding what is discharged from the dust port (4) onto the spoke body (25).

Further, in (37), the sorting wind blown from one side of the sorting air path (17) toward the dust chamber (3) is turned to the other side in the dust chamber (3). A wind direction guide plate (38) is a fourth gutter provided on the other side, that is, on the drainage side, and the bottom of the fourth gutter (38) is provided with stabs and the like dropped from the waste straw along the body. The other side of the dust chamber (3) is opened to the side wall (31) of the dust chamber (3) by a jumping plate (41) which is pivotally mounted in the case (40) at the end of the transfer of the screw conveyor (39) to be transferred rearward. It is configured to return to the dust chamber (3) from (42).

With this configuration, the handling cylinder (10) and the processing cylinder rotate in the directions (A) and (B) in the handling chamber (1) and the processing chamber (11), and the sorting unit ( In 2), the sorting air path (17) is moved by the pressure fan (16) to the dust chamber (3)
The sorting wind that blows toward the gawa winds, and the rocking sorting body (1
9) swings in the direction in which the sorting wind blows, and the spoke body (25) also vibrates up and down, and the suction / dust exhaust fan (5) rotates to suck the sorting wind from the dust chamber (3). The air enters the stagnation chamber (a) through the port (8), and is discharged from the suction / dust exhaust fan (5) to the outside through the fan suction port (9). Then, of the wind entering the stagnation chamber (a) from the dust chamber (3), the one that has blown off on one side is the wind direction guide plate (37).
The wind is diverted to reach the suction port (8), and the wind speed is increased at the suction port (8) to enter the stagnation chamber (a). When the wind speed is reduced, the wind speed is increased again from the fan suction port (9), and the air is exhausted to the outside from the suction / dust exhaust fan (5). In addition, the screw conveyor (39) at the bottom of the fourth gutter (38) also rotates freely to transfer the rearward gutter and the jumping plate (4).
1) also rotates together.

Therefore, the cereals traversed from one side of the handling room (1), ie, from the grain culm supply side to the other side, ie, the culm side, are beaten by the handling drum (10). The receiving network (1
4) The threshing material falling through and the unprocessed material sent from the dust outlet (13) to the processing chamber (11) are processed by the processing cylinder (12), leak down the receiving net (15), and guide. Board (22)
The material that flows down sequentially from the rubber plate (23) and the return grain plate (24) is received by the swinging sorting body (19) and is used for swinging operation and by the sorting wind blowing in the sorting air passage (17). The wind-selected first product is taken out of the machine while being collected in the first product gutter (18), and some grains are blown into the dust chamber (3) together with dust. In addition, the other side, which has been stuck in the straw discharged from the handling room (1) by the alley, falls into the fourth gutter (38), is transported rearward by the screw conveyor (39), and then jumps into the jumping plate (41). ), It is fed back into the exhaust chamber (3).

The receiving network (1) of the processing chamber (11)
Among those that leak from 5), those that do not flow down onto the swinging sorter (19) by the guide plate (22) or the like and the processing chamber (1).
The air discharged from the dust outlet (4) of 1), guided by the guide plate (36) and sieved and sorted by the spoke body (25), and the above-mentioned sorting air passage (17) are put into the dust chamber (3). A relatively heavy one of the blown-in one and the one reduced into the dust chamber (3) from the inlet (42) falls as the second one into the second gutter (27) and is handled by the thrower (28). It will be returned to the room (1), but some grains and dust, and the thing like a piece of straw left on the spoke body (25) are shown in FIG.
Then, as shown in (c), the grains are separated from dust in the stagnation chamber (a), stagnate as shown in (d), and fall as shown in (e) of FIG. ) And the second gutter (2
7), it is returned to the handling room (1), and only light straw and dust are sucked from the fan suction port (9) to the suction / dust fan (5) as shown in (f) of FIG. It is discharged outside the aircraft.

FIGS. 6 and 7 show another embodiment of the present invention, in which a side wall (7) for opening a suction port (8) and a front side extending from the side wall (7). A partition plate (43) is continuously provided from the lower edge of each of the partition walls (35) so that the wind generated by the rotation of the jumping plate (41) prevents the presence of the partition plate (43). By arrow (g)
, The other side of the dust chamber (3) turns toward the suction port (8) while turning around, so that the input port (4)
Those that are thrown into the exhaust chamber (3) together with the wind from 2) are reduced by stab particles and the like separated during the turning process.
The dust falls into the service gutter (27) and the dust enters the stagnation chamber (a) through the suction port (8), and stabs are removed from the dust chamber (3).
When it is thrown into the inside and is to be collected, the separation from the dust is improved and the wind blown from the inlet (42) intersects with the sorting wind that is blown off from one side of the sorting wind path (17). Since there is no deviation, the sorting action is further improved.

Further, in this threshing machine, the handling room receiving net (14) opens the handling cylinder / processing cylinder cover (32) as shown in FIGS. 8 and 9, and opens the handling chamber (1) and the processing chamber. If the partition plate (44) of (11) is taken out upward, it can be detached upward as shown by the arrow (h), and one side, ie, the grain culm supply side wall (45), and the other side, ie, culvert. The side walls (46) are connected by a reinforcing frame (47), one side of the net frame (48) of the receiving net (14) is supported by an inlet iron plate (49), and the other side is supported by a reinforcing frame (47). Then, the inlet iron plate (49) and the reinforcing frame (47) are slid on and removed from each other. Reference numeral (50) is an arc-shaped partition fixed on the receiving net (14).

[0017]

According to the present invention, as described in detail above, a wind selection unit (2) for sorting threshing from the handling room (1) is provided below the handling room (1). ) And a dust extraction chamber (3) integrally formed on the rear side of the wind selection unit (2), a dust extraction port (4 ) that is open toward the dust extraction chamber (3) on one side. ), And the outer wall of the dust chamber (3) is opposite the dust outlet (4).
A suction dust exhaust fan (5) is mounted on the opposite side, and a drop port (6) is opened at the bottom in the upper part of the dust chamber (3) on the suction dust exhaust fan (5) side to open the dust exhaust port (4). ), A stagnation chamber (a) having an intake port (8) opened adjacent to the side wall (7) of the gawa is made adjacent to the gawa wall, and the inside of the dust chamber (3) and the suction dust exhaust fan (5) are connected to the inlet port ( 8) and the stagnation chamber (a) and the fan suction port (9).
Part of the grains and dust that are sorted by the wind selection section (2) and blown into the dust chamber (3) enter the stagnation chamber (a) through the suction port (8), where grains heavier than the dust stagnate. It descends and is collected through the falling port (6) at the bottom, and only dust is sucked from the fan suction port (9) together with the wind and discharged out of the machine, so that even if the amount of threshing varies, Stabilize this without affecting the suction wind power of the suction and exhaust fan (5),
It is possible to prevent the third loss due to scattering outside the machine from the suction / dust fan (5) while avoiding the sorting failure in the wind selection unit (2), and to provide a simple means that does not require a rotating power. It could be provided with the configuration.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view taken along line AA in FIG.

FIG. 2 is a vertical sectional side view taken along line BB in FIG.

FIG. 3 is a vertical sectional side view taken along line CC in FIG.

FIG. 4 is a longitudinal sectional rear view of a main part.

FIG. 5 is a plan view showing the inside of a handling cylinder / processing cylinder cover released.

FIG. 6 is a longitudinal sectional rear view of a main part showing another embodiment.

FIG. 7 is a vertical sectional side view of the same example.

FIG. 8 is a vertical cross-sectional side view of a receiving portion.

FIG. 9 is a vertical front view of the receiving net portion.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Handling room 2 Wind selection part 3 Dust chamber 4 Dust port 5 Suction / dust exhaust fan 6 Drop port 7 Side wall 8 Suction port 9 Fan suction port a Stagnation chamber

Claims (1)

(57) [Scope of request for utility model registration] An air selection unit (2) for sorting threshing from the handling room (1) is provided below the handling room (1), and a rear side of the handling room (1) and the wind selection unit (2). In a threshing machine having an integrated dust chamber (3), one side faces the dust chamber (3).
And the outside wall of the dust chamber (3)
A suction exhaust fan (5) is mounted on the opposite side of the exhaust port (4), and a drop port (6) is provided at the bottom in the upper part of the dust chamber (3) on the suction exhaust fan (5) side. The stagnation chamber (a), which is formed by opening the suction port (8) on the side wall (7) of the opening and the exhaust port (4), is adjacent to the inside of the exhaust chamber (3) and the suction exhaust fan. (5) is communicated from the suction port (8) to the stagnation chamber (a) through the fan suction port (9).